Which of the following sequences correctly lists the hierarchical nature of cellular structures, from smallest to largest?
A) organic molecules, supramolecular structures, macromolecules, organelles, cells
B) organelles, organic molecules, supramolecular structures, macromolecules, cells
C) organic molecules, macromolecules, organelles, supramolecular structures, cells
D) organic molecules, macromolecules, supramolecular structures, organelles, cells
E) macromolecules, organic molecules, supramolecular structures, organelles, cells
D) organic molecules, macromolecules, supramolecular structures, organelles, cells
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Melanoma is cancer of the skin that originates with uncontrolled division of a melanocyte (pigment cell). While there are genetic tests available to screen for melanoma, they are not appropriate for all individuals
However, an individual's risk can be estimated through the use of pedigree analysis. An individual's risk of developing melanoma increases if one or more first-degree relative (mother, father, brother, sister, child) has had melanoma. Which of the following are likely explanations for this increased risk? A. inheritance of a gene mutation that predisposes the individual to developing cancer similarity in lifestyles among individuals of the same family line (e.g., use of tanning beds or time outside in the sun) B. the high likelihood of multiple family members developing identical somatic cell mutations later in life C. Both answer options are likely explanations.
During which stage of the cell cycle do the chromosomes duplicate?
A. telophase B. prophase C. mitosis D. anaphase E. interphase
The rusts and smuts that seriously affect crop plants are
A. basidiomycetes. B. zygomycetes. C. ascomycetes. D. actinomycetes. E. chytrids.
The site of anaerobic ammonia oxidation in the recently described genera Brocadia, Kuenenia, Scalindua, and Anammoxoglobus is called the ________.
Fill in the blank(s) with the appropriate word(s).